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Proceedings Fourth International Conference on MultiAgent Systems

10-12 July 2000

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Displaying Results 1 - 25 of 103
  • Proceedings Fourth International Conference on MultiAgent Systems

    Publication Year: 2000
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    Freely Available from IEEE
  • What's needed to build team players? (Extended abstract for an invited talk)

    Publication Year: 2000, Page(s):3 - 4
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (97 KB)

    In this talk, I will briefly review the major features of one model of collaborative planning, SharedPlans. The model provides a framework in which to raise and address fundamental questions about collaboration and the construction of collaboration-capable agents. I will discuss recent approaches to three plan management processes - assessment of alternatives, commitment management, and group deci... View full abstract»

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  • Index of authors

    Publication Year: 2000, Page(s):471 - 474
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    Freely Available from IEEE
  • Dynamic service pricing for brokers in a multi-agent economy

    Publication Year: 2000, Page(s):375 - 376
    Cited by:  Papers (5)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (216 KB)

    Studies the price dynamics in a multi-agent economy consisting of buyers and competing sellers, where each seller has limited information about its competitors' prices. In this economy, buyers use comparison shopping agents (shopbots) while the sellers employ automated pricing agents (pricebots). Derivative following (DF) provides a simple, albeit naive strategy for dynamic pricing in such a scena... View full abstract»

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  • Performance of coordinating concurrent hierarchical planning agents using summary information

    Publication Year: 2000, Page(s):373 - 374
    Cited by:  Papers (1)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (120 KB)

    Summary information can find solutions at higher levels exponentially more quickly than at lower levels. We have identified heuristics and search techniques that can take advantage of summary information in finding coordinated plans. In addition, we have characterized a coordination algorithm that takes advantage of these search techniques and experimentally shown how it can make large improvement... View full abstract»

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  • An analysis of a supply chain management agent architecture

    Publication Year: 2000, Page(s):401 - 402
    Cited by:  Papers (2)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (112 KB)

    The authors illustrate a methodology for early agent systems architecture analysis and evaluation with the focus on risk identification, evaluation, and mitigation. Architectural decisions on software qualities such as performance, modifiability, and security can be assessed. The illustration is drawn from the supply chain management application domain View full abstract»

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  • A multi-agent system for intelligent network load control using a market-based approach

    Publication Year: 2000, Page(s):231 - 238
    Cited by:  Papers (2)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (368 KB)

    Contemporary shifts in the nature of intelligent networks (IN) have both made the problem of IN load control increasingly important and have pointed towards agent technology as an appropriate solution to that problem. In this paper we present a multi-agent system, comprised of intelligent, autonomous and self-interested agents, which makes use of a market-based approach to perform real-time contro... View full abstract»

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  • Multi-agent systems inspired by artificial chemistries: a case study in automated theorem proving

    Publication Year: 2000, Page(s):371 - 372
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (108 KB)

    We investigate a new architecture for multi-agent systems inspired by artificial chemistries. In this model a huge number of autonomous entities interact in parallel. The system is demonstrated with an automated theorem prover. Our results show that it is advantageous to set up a problem as a multi-agent system based on artificial chemistries View full abstract»

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  • BiddingBot: a multiagent support system for cooperative bidding in multiple auctions

    Publication Year: 2000, Page(s):399 - 400
    Cited by:  Papers (9)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (136 KB)

    Online auctions are becoming an increasingly important channel for electronic commerce. There exist more than 150 online auction sites on the Internet. It is difficult for users to attend, monitor, and bid at multiple auction sites simultaneously. The authors propose BiddingBot which is a multi agent system that supports users in attending, monitoring, and bidding in multiple auctions. BiddingBot ... View full abstract»

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  • Mechanism design for resource bounded agents

    Publication Year: 2000, Page(s):309 - 315
    Cited by:  Papers (8)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (260 KB)

    The theory of mechanism design deals with the design of protocols for non-cooperative multi-agent systems. A major task of this theory is the design of protocols that will maximize the social welfare of the agents. An ideal mechanism will optimize social welfare and will be strategy-proof, i.e. the dominant strategy of each agent will be to participate in the mechanism and to reveal his true goal ... View full abstract»

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  • Distributed case-based learning

    Publication Year: 2000, Page(s):222 - 229
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (272 KB)

    Multi-agent systems exploiting case-based reasoning techniques have to deal with the problem of retrieving episodes that are themselves distributed across a set of agents. From a Gestalt perspective, a good overall case may not be the one derived from the summation of best sub-cases. We deal with issues involved in learning and exploiting the learned knowledge in multi-agent case-based systems. We... View full abstract»

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  • Modelling dialogues using argumentation

    Publication Year: 2000, Page(s):31 - 38
    Cited by:  Papers (26)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (228 KB)

    A number of authors have suggested the use of argumentation techniques as the basis for negotiation dialogues between agents. In this paper we augment this work by investigating the use of argumentation as the basis for a wider range of types of dialogue. The approach we take is based upon MacKenzie's dialogue game DC, and we show that a translation of this into our system of argumentation can sup... View full abstract»

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  • Speculative computation by abduction under incomplete communication environments

    Publication Year: 2000, Page(s):263 - 270
    Cited by:  Papers (15)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (288 KB)

    We present a method of problem solving in multi-agent systems when communication between agents is not guaranteed. To solve the problem of incomplete communication, we propose a method using abduction. The idea is as follows. When communication is delayed or failed, then we use a default hypothesis as a tentative answer and continue computation. When some response is obtained, we check consistency... View full abstract»

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  • The computational complexity of agent design problems

    Publication Year: 2000, Page(s):341 - 348
    Cited by:  Papers (5)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (268 KB)

    The paper investigates the computational complexity of a fundamental problem in multi-agent systems: given an environment together with a specification of some task, can we construct an agent that will successfully achieve the task in the environment? We refer to this problem as agent design. Using an abstract formal model of agents and their environments, we begin by investigating various possibl... View full abstract»

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  • An analytic approach to pheromone-based coordination

    Publication Year: 2000, Page(s):369 - 370
    Cited by:  Patents (4)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (112 KB)

    Stigmergetic coordination of large numbers of simple agents in natural agent systems yields complex and stable coordinated system-level behavior. The Pheromone Infrastructure, an enhancement of the runtime environment of software agent systems, supports the use of stigmergetic coordination mechanisms in synthetic ecosystems. This paper discusses how such mechanisms may be tuned and evaluated, empl... View full abstract»

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  • Using self-diagnosis to adapt organizational structures

    Publication Year: 2000, Page(s):397 - 398
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (112 KB)

    The specific organization used by a multi-agent system is crucial for its effectiveness and efficiency. In dynamic environments, or when the objectives of the system shift, the organization must therefore be able to change as well. The authors propose using a general diagnosis engine to drive this process of adaptation, using the TAEMS modeling language as the primary representation of organizatio... View full abstract»

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  • Adaptive agent integration architectures for heterogeneous team members

    Publication Year: 2000, Page(s):301 - 308
    Cited by:  Papers (5)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (1356 KB)

    With the proliferation of software agents and smart hardware devices there is a growing realization that large-scale problems can be addressed by integration of such standalone systems. This has led to an increasing interest in integration architectures that enable a heterogeneous variety of agents and humans to work together. These agents and humans differ in their capabilities, preferences, the ... View full abstract»

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  • Multi-agent reinforcement learning: an approach based on the other agent's internal model

    Publication Year: 2000, Page(s):215 - 221
    Cited by:  Papers (19)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (108 KB)

    In a multi-agent environment, whether one agent's action is good or not depends on the other agents' actions. In traditional reinforcement learning methods, which assume stationary environments, it is hard to take into account of the other agent's actions which may change due to learning. In this article, we consider a two-agent cooperation problem, and propose a multi-agent reinforcement learning... View full abstract»

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  • State-based control for organizationally situated agents

    Publication Year: 2000, Page(s):457 - 458
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (96 KB)

    Local agent control for sophisticated agents situated in open, dynamic environments is a complex problem. Such agents are hindered by bounded rationality, limited resources, and imperfect knowledge of the world and the activities being performed by other agents. Openness and dynamism conspire against an agent's ability to schedule or plan far downstream temporally-leading to a requirement for effi... View full abstract»

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  • Temporal social reasoning in dynamic multi-agent systems

    Publication Year: 2000, Page(s):23 - 30
    Cited by:  Papers (1)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (244 KB)

    Much work have been done in the recent years on the dependence theory and on building social reasoning mechanisms in multi-agent systems. In this paper we are interested in time, which is a crucial dimension for multi-agent systems having to act in continuously changing environments. We define both temporal dependence networks and temporal social reasoning mechanisms for dynamic multi-agent system... View full abstract»

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  • A comprehensive theory of meaning for communication acts in multi-agent systems

    Publication Year: 2000, Page(s):407 - 408
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (84 KB)

    Based on the Communicative Action Theory proposed by the German Philosopher J. Habermas (1996), we propose a novel framework and formalism that goes beyond the classical speech act theory and its intentionalistic interpretations. We introduce a comprehensive theory of meaning for communication acts, assuming that the content of natural language utterances can be classified in three different domai... View full abstract»

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  • Safe exchange planner

    Publication Year: 2000, Page(s):255 - 262
    Cited by:  Papers (2)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (400 KB)

    A game-theoretic self-enforcing method for carrying out exchanges was presented by Sandholm (1996) and Sandholm et al. (1995). The exchange is divided into chunks, and each exchange party delivers its next chunk only after the other party has completed the previous chunk. This paper operationalizes the theory by presenting a design of a safe exchange planner, which is offered on the web. Exchanges... View full abstract»

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  • The benefits of environment adaptive organisations for agent coordination and network routing problems

    Publication Year: 2000, Page(s):333 - 340
    Cited by:  Papers (2)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (280 KB)

    Resource allocation tasks in communication networks involve challenging problems in the distribution of information and control. The paper presents an adaptive organisational structure to support coordination between agents performing quality of service routing tasks. Agents are able to change organisational relationships over time to match the network state (the task environment). Experimental re... View full abstract»

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  • Wayward agents in a commuting scenario (personalities in the minority game)

    Publication Year: 2000, Page(s):55 - 62
    Cited by:  Papers (4)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (284 KB)

    In our daily lives we often have to face binary decisions where we seek to take the minority's choice, e.g., in traffic scenarios where we have to choose between similar alternative routes. We have studied agent coordination mechanisms in a binary decision model introduced in the literature, the minority game (Challet et al. (1998)). Extending this model, we introduced personalities which model ce... View full abstract»

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  • Modeling and simulation of an agent-based decentralized two-commodity power market

    Publication Year: 2000, Page(s):361 - 362
    Cited by:  Papers (1)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (260 KB)

    A market based approach is described to solve the resource allocation problem of two coupled commodities, namely electric energy and heating energy. Agents assigned to each household and each power plant carry out evaluations independently from each other to reduce data transmission volume and, hence, to improve real time performance. Simulation results are obtained that show high quality power lo... View full abstract»

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